Friction shock-absorbing mechanism



.5. F. OCONNOR FRICTION SHOCK ABSORBING MECHANISM Filed Jan. l5, 1923 2 Shse-Shae' @mg WW IL'IL g, 3925 1,522,538 J. P CDCCDNUD FRICTION SHOCK ABSORBING MECHANISM Filed Jan. l5, 1925 -2 Sheets-Sheet 2 Patented dan. i3, P32255.

TQHN F. OCENOR, OF CHCAG, ILLXNQIS: ASSGNOB.. BY II T0 W. H. MXNEE, KNS., A CORFORATION F DBLAYFIRE.

FB'JICTEON SEGQGE-ABSOLSBING MECHANISM.

.implication 'filed January 15, 1922.3, Serial No. 812.652.

To oil uis/10m 'z' may concern.' The improved shock el", Be it known thutl, JOHN F. @"{loiiiom nisin proper, us shown, co u citizen of the United States, residing at n friction shell A; :i spring r Chicago. in the county of' Cook und State plurality.' ot' friction shoesC--flh f: ot illinois, have invented a certain new und pressure-transmittingr wedge E; useful Improvement in Friction Shock-Ahcomhined wedge und spring cop sorhing lviechzinisins, of which the followretainer holt F. A ing u full, clearr` concise. and exact de- The. shell us shown., comprises scription, reference being luid to the :iceonr ing 18 `providing, at its front or tl panying drawings, forming u. part of this iin outer casing 19 und rearward specification. u spring enge 2G. Aty its rear ei rthis invention relates to iniproven'ients ing is formed With an integr in friction shock'zibsorbing mechanisms. with Q1 which beers upon the The object. ot' the invention is to provide ',lfhe cosiner section 1t) has in i l-'i u friction shell having i renevvnble liner indrio snrt'nee 22 nl; the inner i oit in eliicent design and more particularly is :in annular inwardly extendi a friction Shell of the Cylindrical type Q3. rdjucent the shoulder 4wherein the liner is utilized to provide a Hardly thereof. ure it plurality plurality of true cvlindrie friction surfaces extending openings the H converged inwardly ot the shell. 25 ot which are beveled as best. ii 7F in the drun'ings fonnn.;Y u port ot this JFigure 1. speciieotion- Figure i is n longitudinal seo- The hner Ytor the cesinfr, i

tional view oi' a portion ot n reihe-n.3; dritti; friction shell proper. Censisl riggingV showin" my improvements in eonsections Each of sind s neetion thermvilh, the section through the prises n marin longitudinally exit friction shock absorbing mechanism proper "26 ot arcuate, cross-section sind corresponding to two intersecting pleines et; thee of which` 2 is eylindrio und :in` ongle ot 1200 to euch other. Figures to tit n corresponding` portion of tl l und il nrc vertical transverse sectional evlindrical surt'nce '22. 0n l hf viens ot' the shock uhsorhiujr mechanism euch liner section G provided proper eorrespoinling to the lines Q-2 und indrie triction surface 2S, thev hitter l--l respectively oi Figure. 1. Figure, 4 inclined. however. :it vun nente n. is u front end elevation oi u 'friction shell respect to the uxis ot the ineen-inns employing: another torni otmy invention. this inunner, l provide what niej: he 3; ln this ligure, certain dotted lines indicate three seperate cylindric friction su;

u snunner wrench employed in applying the converged inwardly ot the sheli so liner sections. Figure 5 is e. broken longiinuintnin true sur'uee eontuet with tudiuul sectional view ol the shell shown spending; c vlindric friction surft-rees i in Figure i und emresponding to the line shoes C, herenui'ter described. h 5-5 thereof. find Figure 5 is :t detuii seoshouldered ends :'29 ot the liner sections tionul view corresponding to the section upon the nnnulur shoulder 2.23 oi? the ce line {iw-(3 :it Figure 1. t so that u wide hearingis obtained tor 'he ln suid drawings. and referring first to liner sections. Neintheir inner ends, the the construction illustrated in Figures 1. liner sections G are provided with radially 2 und 3, lll-10 denote the usuel channel outwardly extended heavy lugs 30. @zich or' ino draft. sills of u 'ur underfrume, to the insuoli size andshape as to snugly tit; e. oor ner faces ot which ure secured front stop responding openingQ-'L of the easing.. lugs l1 and reur stop lugs 12. A portion its shown, the shoes C are three in ninnot' n draw har is indicated ut 13, the same her, each having an outer cylindrie `triotion SO being' opeitively associated with the shock surface 31 engaging :i liner tri/tion surn 105 absorbing mechanism proper and front and fuce 28 and iitting, with a snrteee oontnct rear followers 15 and 16 respectively. The thereuguinst. The shoes C nre provided yoke and parts thcreivithin are supported in with wedge. faces 32 and 33 et their front operative position hy a detachable suddle und inner ends respectively and with Whieh plate 17. coopernte corresponding Wedge tacos nro-A 11G tightly wedged -`tion surface vided onltlie -iiuter Wedge D and the wedge spring cap 733,' respectively. As shown, al of the Wedge faces 32 and 33 extend at the saine'angle with respect to the axis of the vmechanism but, as will be understood by those skilled in the art, variations in the angle of these Wedge faces may 'be made in accordance With` the desired operation of the mechanism. Thev Wedge'spring cap E bears upon the front ends ot the two coils oi the spring resistance., said wedge spring cap being cup-shaped to accommodate the inner coil, as clearly appears from Figure 1. The-parts are held in assembled relation by the retainer holt F in a Well-known manner..

In the arrangement shown in Figures 4, and 6,'the construction of the outer casing is generally the same as that previously described in connect-ion with Figures 1, 2 and 3. Three liner sections G are employed, each having an outer cylindric' surface with its axis parallel to the axis of the mechanism 4and an inner cylindric' frio inclined at en acute angle with respect to said axis as in the case of the previously described form. In the' arrangemeut of ligures 4, 5 and 6, however, each liner section G", at its inner end, has an outer heveledor heavy thread-like liange 40, said i'ianges l0 lacing adapted to enterand be in correspondingly shaped grooves or recesses il provided on the inner side of the casing proper 119. edges 42 of the liner sectionsv are maintained perpendicular to the axis oi'gthe mechanism so that they will have an extended bearing Contact with a corresponding annular shoulder 43 provided on the casing. In actual practice, the` liner sections G will be inserte-d by hand Within the casing and turned approximatclyto theirjtinal position. To Wedge Lche flanges tightly'within the recesses si, Iunay then employ a Spanner I-I fitting ljvitiiin the liner sections andV by which the latter may beV given a final turning moveinent to thereby Wedge the flanges 40 snugly within the recesses 41.

I have herein shown und described What I now consider the preferred manner of carrying out my invention, but the saine is "merely illustrative and I contemplate all changes and modifications that come Within the scope oi the claims appended hereto.

I claim: l. A friction zshell including: an outer casing having anintcrior cylindrical surface and open at one end; and a liner for said end of the casing comprising, a plu rality of sections, each section having .outer cylindrical tace fitting a portion `oi rthe cylindricalfinner 'fac-e oi.t the casing, un inner longitudinally extending cylindrical friction surface arranged et an acute angle The inner an out-turned projection near its inner end,

the casing being correspondingly recessed to receive said projections.

2. A. friction shell including: an outer casing having an interior cylindrical surface and open at one end; aliner for said end of the casing comprising, a plurality of sections, each section having an outer cylindrical face iitting a portion of the cylindrical inner face of thc casing, an inner longitudinally extending cylindrical friction surface arranged at an acute angle with respect to the axis of the shell; and an outturned projection near its inner end, the casing being correspondingly recessed to receive said projections, said casing having an interior annular shoulder at the inner ends of and engaged by said liner sections.

3. A friction shell including: an outer casing having an open end; and a liner for said open end of the casing comprising a plurality of sect-ions, each section having an outer face engaging a portion of the inner face of the casing, an inner longitudinally extending friction surface, and an out-turned, transverse ivedge projection, the casing being correspondingly recessed to receive said projection.

4. A friction shell including: an outer casing having an open end and provided on the interior thereof with an inwardly extended hearing shoulder; and a liner for said casing comprising a plurality of sections, each section having an outer face engaging aportion' of the inner tace of the casing,` an inner longitudinally extending friction surface, the inner ends of the sections bearing upon said shoulder and said sections and casing having inter-engaging Wedge locking means thereon adapted to effectively interlock the' same upon relative rotationhereof.

5. A friction shell including; en outer casing having an open endf and inner surfaces extending parallel to the airis of the shell; and a liner for the open end portion of said casing comprising, e plurality of sections, each section having antouter face fitting a. portion of the inner Surface of the casing; an inner longitudinally extending friction surface inclined at an acute angle with respcct to the axis of the shell, and a` transversely extending tapered rib, the casing being provided Wit-hinternal, transversely disposed, tapered slots adapted to receive said proj ection s.

In Witness that I claim the foregoing I have hereunto subscribed my naine this 11th day of January, 1923.

litinesses:

FRANCES SAVAGE, Hannin'rrn M. Damien." 

